拼装式桥涵以及其它装配式钢筋混凝土结构,在负温环境进行拼装施工,其接头的胶结和锚固材料必须具有负温强度发展快,干燥收缩量小,对钢筋无锈蚀作用和耐久性良好等技术性能,同时还要求施工简便,料源充足和造价不高。硅酸盐水泥混凝土在负温条件下施工,为了防止早期受冻和加速硬化,往往采用预热水和集料,或用诸如电热、暖棚等防寒升温技术措施。但在拼装接头部位分散且用料量 Assembled bridge and culvert and other fabricated reinforced concrete structures, assembled in a negative temperature environment, the joint cementing and anchoring materials must have rapid development of negative temperature strength, small amount of drying shrinkage, no rust on the steel and durability and good technology Performance, but also requires the construction is simple, adequate source of material and cost is not high. Portland cement concrete construction under negative temperature conditions, in order to prevent the early cold and accelerated hardening, often using preheated water and aggregates, or with cold, such as electric heating, warm greenhouses and other technical measures. However, the assembly joints scattered parts and materials